81848560

素因数分解:

$2^4\times 5^1\times {\mathrm{1023107}}^1$

素因数の和:1023120

約数の個数: 20

約数和(自身を含む): 190298088

約数和(自身を除く): 108449528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1023107, 2046214, 4092428, 5115535, 8184856, 10231070, 16369712, 20462140, 40924280, 81848560]

約数ペア:

[(1, 81848560), (2, 40924280), (4, 20462140), (5, 16369712), (8, 10231070), (10, 8184856), (16, 5115535), (20, 4092428), (40, 2046214), (80, 1023107)]